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Deterministic engine · AI companion · grounded

Every money decision, played out first.

Pay it down or invest? Afford the house? Enter your numbers: the engine runs the math, the AI explains it. Your first answer in under a minute.

Start a scenario →▶ Watch it work
◆ No bank login◆ Math you can audit◆ Your numbers, worked out
Break-even
Year 7
Rate ceiling
8.0%
Decision summary20 yr horizon

Should I pay it down, or invest the difference?

Invest, by $53k

Break-even at year 7 · holds while your rate is under 8%

now── invest  - - pay down20 yr
See the full breakdown →
Pay down or invest?Afford this house?Will 30 yr get me there?
Built for◆First serious planners◆Global investors & NRIs◆Debt-vs-invest savers◆Families weighing big calls
Two parts, one answer

Talk like a person. Get answered like a spreadsheet.

Describe your situation however it lives in your head. The AI does the understanding; the engine does the math. Neither pretends to be the other.

01 · You
Say it in plain words.
“I’ve got $40k saved, a 6% student loan, and I’d like a house in about three years.”

No 30-field form. Type it, or use the guided inputs. Your call.

→
02 · The AI
Understands & structures.
Cash$40,000
Loan APR6.0%
Horizon3 years

Reads your words, asks only what’s missing, and later explains the why. Its numbers are checked against the engine’s results, and the decision stays yours.

→
03 · The Engine
Computes the verdict.
Deterministic result
+$53,000
same inputs, same answer, every time

Month-by-month math you can audit, not a rule of thumb, not a black box.

Four questions. One engine.

Pick the decision in front of you →
01

Should I clear this debt first?

Debt payoff
34 mo
to debt-free
02

What does this purchase do to my plan?

Invest / purchase
14%
left over each month
03

Pay it down, or invest the difference?

Debt + invest
Yr 7
break-even
04

Where do I actually stand?

Assessment
Full
financial read-out
How it works

From a question to an answer you can audit.

A short guided flow, then go as deep as you want. Every figure is tappable. Nothing is a black box.

Walk through the full flow →
invested.app / scenario
Phase A · a few plain questions
What are you weighing up?
Pay off debtInvest spare cash
A bit of bothJust check in
Question 2 of 5answer in ~52s

See the decision before you make it.

Most tools show results after the money is committed. InvestEd shows them first, and shows its work.

See a full worked result →
01 · Auditable

Tap any number, see exactly how it was reached.

Every figure carries a plain-language label and its full month-by-month math. One tap away.

$18,780
net advantage · traced to month 84
How that number is reached
Invested value · mo 84$41,880
− Remaining balance$23,100
= Net advantage$18,780
02 · Private

No bank logins or scraping, just the numbers you enter.

03 · Reversible

Branch, compare, undo. Your original scenario always stays put.

04 · Grounded

Every comment is tied to the numbers you entered, never generic.

The AI Companion

The math tells you what. The AI tells you why.

It reads the engine’s output and explains it. The engine computes your outcome, not the AI. Two modes:

✓

Reads the engine's output for your exact scenario.

✓

Explains the why in plain language. Its numbers are checked against the engine's results.

✓

Two modes: a structured read-out, or an open conversation.

✓

The decision always stays yours. It never makes the call.

Eva · explaingrounded
Summary

This dual-track plan is feasible: it runs as entered, with limited cushion because payoff stretches near the horizon.

What's working

First loan cleared in month 18, an early win on the highest-interest debt.

What to watch

Loan rate and expected return sit close together, so the margin is thin.

Methodology

Boring math, on purpose.

Deterministic and reproducible: the same inputs give the same answer, grounded in established principles rather than a rule of thumb.

Why you can trust it →
What you get back, not just a number
VerdictMonth-by-monthBreak-evenInterest costConfidenceWhat-if
See a full result →
Roadmap

Where InvestEd is heading.

Same principles, deterministic, private, grounded, extended to more of the decisions you actually face.

Live now
Debt-vs-invest engine
Live now
Affordability & FIRE
Live now
Grounded AI companion
FAQ

Questions, answered plainly.

No. InvestEd never asks for a bank login, card, or account access. You enter the numbers you want to model, and everything runs on those.

Run your first scenario in two minutes.

Bring a real question: a loan, a house, a monthly amount. Leave with an answer you can see the math behind.

Start a scenario →
InvestEd

A calm, math-first financial planner. Decisions, answered before you commit.

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© 2026 InvestEd · Not financial advice · No bank logins, ever · Math you can audit